JPS5668873A - Picture signal binary system - Google Patents

Picture signal binary system

Info

Publication number
JPS5668873A
JPS5668873A JP14475679A JP14475679A JPS5668873A JP S5668873 A JPS5668873 A JP S5668873A JP 14475679 A JP14475679 A JP 14475679A JP 14475679 A JP14475679 A JP 14475679A JP S5668873 A JPS5668873 A JP S5668873A
Authority
JP
Japan
Prior art keywords
signals
picture element
signal
binary
multiplier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14475679A
Other languages
Japanese (ja)
Inventor
Mitsuo Oiso
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14475679A priority Critical patent/JPS5668873A/en
Publication of JPS5668873A publication Critical patent/JPS5668873A/en
Pending legal-status Critical Current

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Landscapes

  • Character Input (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To make the signal binary accurately, by determining a slice level according to the leakage rate of picture element signals surrounding a picture element to facilitate the characters of a narrow stroke interval binary.
CONSTITUTION: Counter 6 is operated by the start signal, and AND gates 31W3N to gate picture element signals 21W2N surrounding picture element signal V0, which should by made binary, are controlled through gate switching control circuit 5 by the count value of counter 6, and signals 21W2N are applied to multiplier 8 through OR gate 4. The count value of counter 6 is input as the address to one input of multiplier 8, and the output of ROM7 where the leakage rate of each sensor is stored is applied, and signals 21W2N and leakage rates are operated correspondingly to signals 21W2N by multiplier 8, and the output is supplied to addition average value calculating circuit 9. The average value of signals 21W2N multiplied by leakage rates successively is obtained by circuit 9 and register 10 to determine a slice level, and the slice level is compared with picture element signal V0 in comparing circuit 11 to make the signal binary accurately.
COPYRIGHT: (C)1981,JPO&Japio
JP14475679A 1979-11-08 1979-11-08 Picture signal binary system Pending JPS5668873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14475679A JPS5668873A (en) 1979-11-08 1979-11-08 Picture signal binary system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14475679A JPS5668873A (en) 1979-11-08 1979-11-08 Picture signal binary system

Publications (1)

Publication Number Publication Date
JPS5668873A true JPS5668873A (en) 1981-06-09

Family

ID=15369650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14475679A Pending JPS5668873A (en) 1979-11-08 1979-11-08 Picture signal binary system

Country Status (1)

Country Link
JP (1) JPS5668873A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202666A (en) * 1982-05-21 1983-11-25 Ricoh Co Ltd Binary coding system
JPS59175281A (en) * 1983-03-11 1984-10-04 ウオング・ラボラトリ−ズ・インコ−ポレ−テツド Adaptive threshold for treating image
JPS6058776A (en) * 1983-09-12 1985-04-04 Ricoh Co Ltd Picture reader
JPS6080368A (en) * 1983-10-11 1985-05-08 Ricoh Co Ltd Binary coding device of picture signal
JPS648488A (en) * 1987-06-30 1989-01-12 Sharp Kk Image signal binarizing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202666A (en) * 1982-05-21 1983-11-25 Ricoh Co Ltd Binary coding system
JPS59175281A (en) * 1983-03-11 1984-10-04 ウオング・ラボラトリ−ズ・インコ−ポレ−テツド Adaptive threshold for treating image
JPS6058776A (en) * 1983-09-12 1985-04-04 Ricoh Co Ltd Picture reader
JPS6080368A (en) * 1983-10-11 1985-05-08 Ricoh Co Ltd Binary coding device of picture signal
JPS648488A (en) * 1987-06-30 1989-01-12 Sharp Kk Image signal binarizing device

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